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gdb/gdb-upstream.patch

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FYI: fix possible crash in find_charset_names
http://sourceware.org/ml/gdb-patches/2012-02/msg00073.html
http://sourceware.org/ml/gdb-cvs/2012-02/msg00037.html
https://bugzilla.redhat.com/show_bug.cgi?id=786091
### src/gdb/ChangeLog 2012/02/07 04:48:14 1.13810
### src/gdb/ChangeLog 2012/02/07 15:42:33 1.13811
## -1,3 +1,7 @@
+2012-02-07 Tom Tromey <tromey@redhat.com>
+
+ * charset.c (find_charset_names): Check 'in' against NULL.
+
2012-02-06 Doug Evans <dje@google.com>
* gdbtypes.h (struct main_type): Change type of name,tag_name,
--- src/gdb/charset.c 2012/01/24 21:36:37 1.47
+++ src/gdb/charset.c 2012/02/07 15:42:39 1.48
@@ -839,7 +839,7 @@
parse the glibc and libiconv formats; feel free to add others
as needed. */
- while (!feof (in))
+ while (in != NULL && !feof (in))
{
/* The size of buf is chosen arbitrarily. */
char buf[1024];
http://sourceware.org/ml/gdb-patches/2012-02/msg00151.html
Subject: [patch] ppc-linux-nat.c: Fix gcc-4.7 aliasing warnings
Hi,
ppc-linux-nat.c: In function 'fetch_register':
ppc-linux-nat.c:598:9: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
ppc-linux-nat.c: In function 'store_register':
ppc-linux-nat.c:1078:8: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
gcc-4.7.0-0.10.fc17.ppc64
Probably clear, I looked at making it using union instead of memcpy but that
would be too ugly.
No regressions on ppc64-fedorarawhide-linux-gnu only for gdb.base/*.exp.
I will check it in.
Thanks,
Jan
gdb/
2012-02-09 Jan Kratochvil <jan.kratochvil@redhat.com>
* ppc-linux-nat.c (fetch_register, store_register): Fix GCC aliasing
compilation warning.
--- a/gdb/ppc-linux-nat.c
+++ b/gdb/ppc-linux-nat.c
@@ -593,9 +593,10 @@ fetch_register (struct regcache *regcache, int tid, int regno)
bytes_transferred < register_size (gdbarch, regno);
bytes_transferred += sizeof (long))
{
+ long l;
+
errno = 0;
- *(long *) &buf[bytes_transferred]
- = ptrace (PTRACE_PEEKUSER, tid, (PTRACE_TYPE_ARG3) regaddr, 0);
+ l = ptrace (PTRACE_PEEKUSER, tid, (PTRACE_TYPE_ARG3) regaddr, 0);
regaddr += sizeof (long);
if (errno != 0)
{
@@ -604,6 +605,7 @@ fetch_register (struct regcache *regcache, int tid, int regno)
gdbarch_register_name (gdbarch, regno), regno);
perror_with_name (message);
}
+ memcpy (&buf[bytes_transferred], &l, sizeof (l));
}
/* Now supply the register. Keep in mind that the regcache's idea
@@ -1073,9 +1075,11 @@ store_register (const struct regcache *regcache, int tid, int regno)
for (i = 0; i < bytes_to_transfer; i += sizeof (long))
{
+ long l;
+
+ memcpy (&l, &buf[i], sizeof (l));
errno = 0;
- ptrace (PTRACE_POKEUSER, tid, (PTRACE_TYPE_ARG3) regaddr,
- *(long *) &buf[i]);
+ ptrace (PTRACE_POKEUSER, tid, (PTRACE_TYPE_ARG3) regaddr, l);
regaddr += sizeof (long);
if (errno == EIO
http://sourceware.org/ml/gdb-patches/2012-02/msg00409.html
Subject: FYI: remove extraneous block from dw2_map_symtabs_matching_filename
http://sourceware.org/ml/gdb-cvs/2012-02/msg00117.html
commit 61d8161b33b1e7dbc80ba6f7a92500a1594da55c
### src/gdb/ChangeLog 2012/02/20 09:42:34 1.13845
### src/gdb/ChangeLog 2012/02/20 19:24:34 1.13846
## -1,3 +1,8 @@
+2012-02-20 Tom Tromey <tromey@redhat.com>
+
+ * dwarf2read.c (dw2_map_symtabs_matching_filename): Remove
+ extraneous block.
+
2012-02-20 Tristan Gingold <gingold@adacore.com>
* darwin-nat.h (enum darwin_msg_state): Add comments.
--- src/gdb/dwarf2read.c 2012/02/07 04:48:19 1.612
+++ src/gdb/dwarf2read.c 2012/02/20 19:24:39 1.613
@@ -2437,13 +2437,6 @@
return 1;
}
- {
- if (dw2_map_expand_apply (objfile, per_cu,
- name, full_path, real_path,
- callback, data))
- return 1;
- }
-
/* Before we invoke realpath, which can get expensive when many
files are involved, do a quick comparison of the basenames. */
if (! basenames_may_differ
FYI: fix some performance bugs with .gdb_index
http://sourceware.org/ml/gdb-patches/2012-02/msg00413.html
http://sourceware.org/ml/gdb-cvs/2012-02/msg00119.html
### src/gdb/ChangeLog 2012/02/20 19:44:00 1.13847
### src/gdb/ChangeLog 2012/02/20 20:56:12 1.13848
## -1,3 +1,10 @@
+2012-02-20 Tom Tromey <tromey@redhat.com>
+
+ PR gdb/13498:
+ * dwarf2read.c (dw2_expand_symtabs_matching): Only visit a
+ particular set of file names once.
+ (dw2_map_symbol_filenames): Likewise.
+
2012-02-20 Jan Kratochvil <jan.kratochvil@redhat.com>
Code cleanup.
--- src/gdb/dwarf2read.c 2012/02/20 19:24:39 1.613
+++ src/gdb/dwarf2read.c 2012/02/20 20:56:12 1.614
@@ -2700,32 +2700,63 @@
index = dwarf2_per_objfile->index_table;
if (file_matcher != NULL)
- for (i = 0; i < (dwarf2_per_objfile->n_comp_units
- + dwarf2_per_objfile->n_type_units); ++i)
- {
- int j;
- struct dwarf2_per_cu_data *per_cu = dw2_get_cu (i);
- struct quick_file_names *file_data;
+ {
+ struct cleanup *cleanup;
+ htab_t visited_found, visited_not_found;
- per_cu->v.quick->mark = 0;
+ visited_found = htab_create_alloc (10,
+ htab_hash_pointer, htab_eq_pointer,
+ NULL, xcalloc, xfree);
+ cleanup = make_cleanup_htab_delete (visited_found);
+ visited_not_found = htab_create_alloc (10,
+ htab_hash_pointer, htab_eq_pointer,
+ NULL, xcalloc, xfree);
+ make_cleanup_htab_delete (visited_not_found);
- /* We only need to look at symtabs not already expanded. */
- if (per_cu->v.quick->symtab)
- continue;
+ for (i = 0; i < (dwarf2_per_objfile->n_comp_units
+ + dwarf2_per_objfile->n_type_units); ++i)
+ {
+ int j;
+ struct dwarf2_per_cu_data *per_cu = dw2_get_cu (i);
+ struct quick_file_names *file_data;
+ void **slot;
- file_data = dw2_get_file_names (objfile, per_cu);
- if (file_data == NULL)
- continue;
+ per_cu->v.quick->mark = 0;
- for (j = 0; j < file_data->num_file_names; ++j)
- {
- if (file_matcher (file_data->file_names[j], data))
- {
- per_cu->v.quick->mark = 1;
- break;
- }
- }
- }
+ /* We only need to look at symtabs not already expanded. */
+ if (per_cu->v.quick->symtab)
+ continue;
+
+ file_data = dw2_get_file_names (objfile, per_cu);
+ if (file_data == NULL)
+ continue;
+
+ if (htab_find (visited_not_found, file_data) != NULL)
+ continue;
+ else if (htab_find (visited_found, file_data) != NULL)
+ {
+ per_cu->v.quick->mark = 1;
+ continue;
+ }
+
+ for (j = 0; j < file_data->num_file_names; ++j)
+ {
+ if (file_matcher (file_data->file_names[j], data))
+ {
+ per_cu->v.quick->mark = 1;
+ break;
+ }
+ }
+
+ slot = htab_find_slot (per_cu->v.quick->mark
+ ? visited_found
+ : visited_not_found,
+ file_data, INSERT);
+ *slot = file_data;
+ }
+
+ do_cleanups (cleanup);
+ }
for (iter = 0; iter < index->symbol_table_slots; ++iter)
{
@@ -2787,15 +2818,35 @@
void *data, int need_fullname)
{
int i;
+ struct cleanup *cleanup;
+ htab_t visited = htab_create_alloc (10, htab_hash_pointer, htab_eq_pointer,
+ NULL, xcalloc, xfree);
+ cleanup = make_cleanup_htab_delete (visited);
dw2_setup (objfile);
+ /* We can ignore file names coming from already-expanded CUs. */
+ for (i = 0; i < (dwarf2_per_objfile->n_comp_units
+ + dwarf2_per_objfile->n_type_units); ++i)
+ {
+ struct dwarf2_per_cu_data *per_cu = dw2_get_cu (i);
+
+ if (per_cu->v.quick->symtab)
+ {
+ void **slot = htab_find_slot (visited, per_cu->v.quick->file_names,
+ INSERT);
+
+ *slot = per_cu->v.quick->file_names;
+ }
+ }
+
for (i = 0; i < (dwarf2_per_objfile->n_comp_units
+ dwarf2_per_objfile->n_type_units); ++i)
{
int j;
struct dwarf2_per_cu_data *per_cu = dw2_get_cu (i);
struct quick_file_names *file_data;
+ void **slot;
/* We only need to look at symtabs not already expanded. */
if (per_cu->v.quick->symtab)
@@ -2805,6 +2856,14 @@
if (file_data == NULL)
continue;
+ slot = htab_find_slot (visited, file_data, INSERT);
+ if (*slot)
+ {
+ /* Already visited. */
+ continue;
+ }
+ *slot = file_data;
+
for (j = 0; j < file_data->num_file_names; ++j)
{
const char *this_real_name;
@@ -2816,6 +2875,8 @@
(*fun) (file_data->file_names[j], this_real_name, data);
}
}
+
+ do_cleanups (cleanup);
}
static int
http://sourceware.org/ml/gdb-cvs/2012-09/msg00081.html
### src/gdb/ChangeLog 2012/09/17 07:14:54 1.14469.2.32
### src/gdb/ChangeLog 2012/09/17 07:17:25 1.14469.2.33
## -1,4 +1,11 @@
2012-09-17 Jan Kratochvil <jan.kratochvil@redhat.com>
+
+ PR 14119
+ * frame.c (skip_inlined_frames): Skip also TAILCALL_FRAME frames.
+ (frame_pop): Drop also TAILCALL_FRAME frames.
+ * infcmd.c (finish_command): Ignore also TAILCALL_FRAME frames.
+
+2012-09-17 Jan Kratochvil <jan.kratochvil@redhat.com>
Pedro Alves <palves@redhat.com>
PR 14548
--- src/gdb/frame.c 2012/03/01 20:48:56 1.306
+++ src/gdb/frame.c 2012/09/17 07:17:27 1.306.2.1
@@ -309,7 +309,8 @@
static struct frame_info *
skip_inlined_frames (struct frame_info *frame)
{
- while (get_frame_type (frame) == INLINE_FRAME)
+ while (get_frame_type (frame) == INLINE_FRAME
+ || get_frame_type (frame) == TAILCALL_FRAME)
frame = get_prev_frame (frame);
return frame;
@@ -814,6 +815,11 @@
if (!prev_frame)
error (_("Cannot pop the initial frame."));
+ /* Ignore TAILCALL_FRAME type frames, they were executed already before
+ entering THISFRAME. */
+ while (get_frame_type (prev_frame) == TAILCALL_FRAME)
+ prev_frame = get_prev_frame (prev_frame);
+
/* Make a copy of all the register values unwound from this frame.
Save them in a scratch buffer so that there isn't a race between
trying to extract the old values from the current regcache while
--- src/gdb/infcmd.c 2012/06/29 22:46:44 1.306
+++ src/gdb/infcmd.c 2012/09/17 07:17:27 1.306.2.1
@@ -1777,6 +1777,11 @@
return;
}
+ /* Ignore TAILCALL_FRAME type frames, they were executed already before
+ entering THISFRAME. */
+ while (get_frame_type (frame) == TAILCALL_FRAME)
+ frame = get_prev_frame (frame);
+
/* Find the function we will return from. */
function = find_pc_function (get_frame_pc (get_selected_frame (NULL)));
### src/gdb/testsuite/ChangeLog 2012/09/17 07:14:55 1.3295.2.22
### src/gdb/testsuite/ChangeLog 2012/09/17 07:17:27 1.3295.2.23
## -1,5 +1,15 @@
2012-09-17 Jan Kratochvil <jan.kratochvil@redhat.com>
+ PR 14119
+ * gdb.arch/amd64-tailcall-ret.S: New file.
+ * gdb.arch/amd64-tailcall-ret.c: New file.
+ * gdb.arch/amd64-tailcall-ret.exp: New file.
+ * gdb.reverse/amd64-tailcall-reverse.S: New file.
+ * gdb.reverse/amd64-tailcall-reverse.c: New file.
+ * gdb.reverse/amd64-tailcall-reverse.exp: New file.
+
+2012-09-17 Jan Kratochvil <jan.kratochvil@redhat.com>
+
PR 14548
* gdb.reverse/singlejmp-reverse-nodebug.S: New file.
* gdb.reverse/singlejmp-reverse-nodebug.c: New file.
--- src/gdb/testsuite/gdb.arch/amd64-tailcall-ret.S
+++ src/gdb/testsuite/gdb.arch/amd64-tailcall-ret.S 2013-01-13 07:24:23.894972000 +0000
@@ -0,0 +1,357 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2012 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* This source file was generated by:
+ gcc -o gdb.arch/amd64-tailcall-ret.S gdb.arch/amd64-tailcall-ret.c -Wall -S -dA -O2 -g
+ */
+
+ .file "amd64-tailcall-ret.c"
+ .text
+.Ltext0:
+ .p2align 4,,15
+ .type g, @function
+g:
+.LFB0:
+ .file 1 "gdb.arch/amd64-tailcall-ret.c"
+ # gdb.arch/amd64-tailcall-ret.c:22
+ .loc 1 22 0
+ .cfi_startproc
+# BLOCK 2 freq:10000 seq:0
+# PRED: ENTRY [100.0%] (fallthru)
+ # gdb.arch/amd64-tailcall-ret.c:23
+ .loc 1 23 0
+ movl $2, v(%rip)
+# SUCC: EXIT [100.0%]
+ ret
+ .cfi_endproc
+.LFE0:
+ .size g, .-g
+ .p2align 4,,15
+ .type f, @function
+f:
+.LFB1:
+ # gdb.arch/amd64-tailcall-ret.c:28
+ .loc 1 28 0
+ .cfi_startproc
+# BLOCK 2 freq:10000 seq:0
+# PRED: ENTRY [100.0%] (fallthru)
+ # gdb.arch/amd64-tailcall-ret.c:29
+ .loc 1 29 0
+ jmp g
+# SUCC: EXIT [100.0%] (ab,sibcall)
+.LVL0:
+ .cfi_endproc
+.LFE1:
+ .size f, .-f
+ .section .text.startup,"ax",@progbits
+ .p2align 4,,15
+ .globl main
+ .type main, @function
+main:
+.LFB2:
+ # gdb.arch/amd64-tailcall-ret.c:34
+ .loc 1 34 0
+ .cfi_startproc
+# BLOCK 2 freq:10000 seq:0
+# PRED: ENTRY [100.0%] (fallthru)
+ # gdb.arch/amd64-tailcall-ret.c:35
+ .loc 1 35 0
+ call f
+.LVL1:
+ # gdb.arch/amd64-tailcall-ret.c:36
+ .loc 1 36 0
+ call f
+.LVL2:
+ # gdb.arch/amd64-tailcall-ret.c:37
+ .loc 1 37 0
+ movl $3, v(%rip)
+ # gdb.arch/amd64-tailcall-ret.c:39
+ .loc 1 39 0
+ xorl %eax, %eax
+# SUCC: EXIT [100.0%]
+ ret
+ .cfi_endproc
+.LFE2:
+ .size main, .-main
+ .comm v,4,4
+ .text
+.Letext0:
+ .section .debug_info,"",@progbits
+.Ldebug_info0:
+ .long 0xd5 # Length of Compilation Unit Info
+ .value 0x2 # DWARF version number
+ .long .Ldebug_abbrev0 # Offset Into Abbrev. Section
+ .byte 0x8 # Pointer Size (in bytes)
+ .uleb128 0x1 # (DIE (0xb) DW_TAG_compile_unit)
+ .long .LASF0 # DW_AT_producer: "GNU C 4.7.2 20120911 (prerelease)"
+ .byte 0x1 # DW_AT_language
+ .long .LASF1 # DW_AT_name: "gdb.arch/amd64-tailcall-ret.c"
+ .long .LASF2 # DW_AT_comp_dir: ""
+ .long .Ldebug_ranges0+0 # DW_AT_ranges
+ .quad 0 # DW_AT_low_pc
+ .quad 0 # DW_AT_entry_pc
+ .long .Ldebug_line0 # DW_AT_stmt_list
+ .uleb128 0x2 # (DIE (0x31) DW_TAG_subprogram)
+ .ascii "g\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-ret.c)
+ .byte 0x15 # DW_AT_decl_line
+ .byte 0x1 # DW_AT_prototyped
+ .quad .LFB0 # DW_AT_low_pc
+ .quad .LFE0 # DW_AT_high_pc
+ .byte 0x2 # DW_AT_frame_base
+ .byte 0x77 # DW_OP_breg7
+ .sleb128 8
+ .byte 0x1 # DW_AT_GNU_all_call_sites
+ .uleb128 0x3 # (DIE (0x4b) DW_TAG_subprogram)
+ .ascii "f\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-ret.c)
+ .byte 0x1b # DW_AT_decl_line
+ .byte 0x1 # DW_AT_prototyped
+ .quad .LFB1 # DW_AT_low_pc
+ .quad .LFE1 # DW_AT_high_pc
+ .byte 0x2 # DW_AT_frame_base
+ .byte 0x77 # DW_OP_breg7
+ .sleb128 8
+ .byte 0x1 # DW_AT_GNU_all_call_sites
+ .long 0x78 # DW_AT_sibling
+ .uleb128 0x4 # (DIE (0x69) DW_TAG_GNU_call_site)
+ .quad .LVL0 # DW_AT_low_pc
+ .byte 0x1 # DW_AT_GNU_tail_call
+ .long 0x31 # DW_AT_abstract_origin
+ .byte 0 # end of children of DIE 0x4b
+ .uleb128 0x5 # (DIE (0x78) DW_TAG_subprogram)
+ .byte 0x1 # DW_AT_external
+ .long .LASF3 # DW_AT_name: "main"
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-ret.c)
+ .byte 0x21 # DW_AT_decl_line
+ .byte 0x1 # DW_AT_prototyped
+ .long 0xb8 # DW_AT_type
+ .quad .LFB2 # DW_AT_low_pc
+ .quad .LFE2 # DW_AT_high_pc
+ .byte 0x2 # DW_AT_frame_base
+ .byte 0x77 # DW_OP_breg7
+ .sleb128 8
+ .byte 0x1 # DW_AT_GNU_all_call_sites
+ .long 0xb8 # DW_AT_sibling
+ .uleb128 0x6 # (DIE (0x9d) DW_TAG_GNU_call_site)
+ .quad .LVL1 # DW_AT_low_pc
+ .long 0x4b # DW_AT_abstract_origin
+ .uleb128 0x6 # (DIE (0xaa) DW_TAG_GNU_call_site)
+ .quad .LVL2 # DW_AT_low_pc
+ .long 0x4b # DW_AT_abstract_origin
+ .byte 0 # end of children of DIE 0x78
+ .uleb128 0x7 # (DIE (0xb8) DW_TAG_base_type)
+ .byte 0x4 # DW_AT_byte_size
+ .byte 0x5 # DW_AT_encoding
+ .ascii "int\0" # DW_AT_name
+ .uleb128 0x8 # (DIE (0xbf) DW_TAG_variable)
+ .ascii "v\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-tailcall-ret.c)
+ .byte 0x12 # DW_AT_decl_line
+ .long 0xd3 # DW_AT_type
+ .byte 0x1 # DW_AT_external
+ .byte 0x9 # DW_AT_location
+ .byte 0x3 # DW_OP_addr
+ .quad v
+ .uleb128 0x9 # (DIE (0xd3) DW_TAG_volatile_type)
+ .long 0xb8 # DW_AT_type
+ .byte 0 # end of children of DIE 0xb
+ .section .debug_abbrev,"",@progbits
+.Ldebug_abbrev0:
+ .uleb128 0x1 # (abbrev code)
+ .uleb128 0x11 # (TAG: DW_TAG_compile_unit)
+ .byte 0x1 # DW_children_yes
+ .uleb128 0x25 # (DW_AT_producer)
+ .uleb128 0xe # (DW_FORM_strp)
+ .uleb128 0x13 # (DW_AT_language)
+ .uleb128 0xb # (DW_FORM_data1)
+ .uleb128 0x3 # (DW_AT_name)
+ .uleb128 0xe # (DW_FORM_strp)
+ .uleb128 0x1b # (DW_AT_comp_dir)
+ .uleb128 0xe # (DW_FORM_strp)
+ .uleb128 0x55 # (DW_AT_ranges)
+ .uleb128 0x6 # (DW_FORM_data4)
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x52 # (DW_AT_entry_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x10 # (DW_AT_stmt_list)
+ .uleb128 0x6 # (DW_FORM_data4)
+ .byte 0
+ .byte 0
+ .uleb128 0x2 # (abbrev code)
+ .uleb128 0x2e # (TAG: DW_TAG_subprogram)
+ .byte 0 # DW_children_no
+ .uleb128 0x3 # (DW_AT_name)
+ .uleb128 0x8 # (DW_FORM_string)
+ .uleb128 0x3a # (DW_AT_decl_file)
+ .uleb128 0xb # (DW_FORM_data1)
+ .uleb128 0x3b # (DW_AT_decl_line)
+ .uleb128 0xb # (DW_FORM_data1)
+ .uleb128 0x27 # (DW_AT_prototyped)
+ .uleb128 0xc # (DW_FORM_flag)
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x12 # (DW_AT_high_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x40 # (DW_AT_frame_base)
+ .uleb128 0xa # (DW_FORM_block1)
+ .uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
+ .uleb128 0xc # (DW_FORM_flag)
+ .byte 0
+ .byte 0
+ .uleb128 0x3 # (abbrev code)
+ .uleb128 0x2e # (TAG: DW_TAG_subprogram)
+ .byte 0x1 # DW_children_yes
+ .uleb128 0x3 # (DW_AT_name)
+ .uleb128 0x8 # (DW_FORM_string)
+ .uleb128 0x3a # (DW_AT_decl_file)
+ .uleb128 0xb # (DW_FORM_data1)
+ .uleb128 0x3b # (DW_AT_decl_line)
+ .uleb128 0xb # (DW_FORM_data1)
+ .uleb128 0x27 # (DW_AT_prototyped)
+ .uleb128 0xc # (DW_FORM_flag)
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x12 # (DW_AT_high_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x40 # (DW_AT_frame_base)
+ .uleb128 0xa # (DW_FORM_block1)
+ .uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
+ .uleb128 0xc # (DW_FORM_flag)
+ .uleb128 0x1 # (DW_AT_sibling)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .byte 0
+ .byte 0
+ .uleb128 0x4 # (abbrev code)
+ .uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site)
+ .byte 0 # DW_children_no
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x2115 # (DW_AT_GNU_tail_call)
+ .uleb128 0xc # (DW_FORM_flag)
+ .uleb128 0x31 # (DW_AT_abstract_origin)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .byte 0
+ .byte 0
+ .uleb128 0x5 # (abbrev code)
+ .uleb128 0x2e # (TAG: DW_TAG_subprogram)
+ .byte 0x1 # DW_children_yes
+ .uleb128 0x3f # (DW_AT_external)
+ .uleb128 0xc # (DW_FORM_flag)
+ .uleb128 0x3 # (DW_AT_name)
+ .uleb128 0xe # (DW_FORM_strp)
+ .uleb128 0x3a # (DW_AT_decl_file)
+ .uleb128 0xb # (DW_FORM_data1)
+ .uleb128 0x3b # (DW_AT_decl_line)
+ .uleb128 0xb # (DW_FORM_data1)
+ .uleb128 0x27 # (DW_AT_prototyped)
+ .uleb128 0xc # (DW_FORM_flag)
+ .uleb128 0x49 # (DW_AT_type)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x12 # (DW_AT_high_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x40 # (DW_AT_frame_base)
+ .uleb128 0xa # (DW_FORM_block1)
+ .uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
+ .uleb128 0xc # (DW_FORM_flag)
+ .uleb128 0x1 # (DW_AT_sibling)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .byte 0
+ .byte 0
+ .uleb128 0x6 # (abbrev code)
+ .uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site)
+ .byte 0 # DW_children_no
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x31 # (DW_AT_abstract_origin)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .byte 0
+ .byte 0
+ .uleb128 0x7 # (abbrev code)
+ .uleb128 0x24 # (TAG: DW_TAG_base_type)
+ .byte 0 # DW_children_no
+ .uleb128 0xb # (DW_AT_byte_size)
+ .uleb128 0xb # (DW_FORM_data1)
+ .uleb128 0x3e # (DW_AT_encoding)
+ .uleb128 0xb # (DW_FORM_data1)
+ .uleb128 0x3 # (DW_AT_name)
+ .uleb128 0x8 # (DW_FORM_string)
+ .byte 0
+ .byte 0
+ .uleb128 0x8 # (abbrev code)
+ .uleb128 0x34 # (TAG: DW_TAG_variable)
+ .byte 0 # DW_children_no
+ .uleb128 0x3 # (DW_AT_name)
+ .uleb128 0x8 # (DW_FORM_string)
+ .uleb128 0x3a # (DW_AT_decl_file)
+ .uleb128 0xb # (DW_FORM_data1)
+ .uleb128 0x3b # (DW_AT_decl_line)
+ .uleb128 0xb # (DW_FORM_data1)
+ .uleb128 0x49 # (DW_AT_type)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .uleb128 0x3f # (DW_AT_external)
+ .uleb128 0xc # (DW_FORM_flag)
+ .uleb128 0x2 # (DW_AT_location)
+ .uleb128 0xa # (DW_FORM_block1)
+ .byte 0
+ .byte 0
+ .uleb128 0x9 # (abbrev code)
+ .uleb128 0x35 # (TAG: DW_TAG_volatile_type)
+ .byte 0 # DW_children_no
+ .uleb128 0x49 # (DW_AT_type)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .byte 0
+ .byte 0
+ .byte 0
+ .section .debug_aranges,"",@progbits
+ .long 0x3c # Length of Address Ranges Info
+ .value 0x2 # DWARF Version
+ .long .Ldebug_info0 # Offset of Compilation Unit Info
+ .byte 0x8 # Size of Address
+ .byte 0 # Size of Segment Descriptor
+ .value 0 # Pad to 16 byte boundary
+ .value 0
+ .quad .Ltext0 # Address
+ .quad .Letext0-.Ltext0 # Length
+ .quad .LFB2 # Address
+ .quad .LFE2-.LFB2 # Length
+ .quad 0
+ .quad 0
+ .section .debug_ranges,"",@progbits
+.Ldebug_ranges0:
+ .quad .Ltext0 # Offset 0
+ .quad .Letext0
+ .quad .LFB2 # Offset 0x10
+ .quad .LFE2
+ .quad 0
+ .quad 0
+ .section .debug_line,"",@progbits
+.Ldebug_line0:
+ .section .debug_str,"MS",@progbits,1
+.LASF0:
+ .string "GNU C 4.7.2 20120911 (prerelease)"
+.LASF1:
+ .string "gdb.arch/amd64-tailcall-ret.c"
+.LASF2:
+ .string ""
+.LASF3:
+ .string "main"
+ .ident "GCC: (GNU) 4.7.2 20120911 (prerelease)"
+ .section .note.GNU-stack,"",@progbits
--- src/gdb/testsuite/gdb.arch/amd64-tailcall-ret.c
+++ src/gdb/testsuite/gdb.arch/amd64-tailcall-ret.c 2013-01-13 07:24:24.648595000 +0000
@@ -0,0 +1,39 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2012 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+volatile int v;
+
+static __attribute__ ((noinline, noclone)) void
+g (void)
+{
+ v = 2;
+}
+
+static __attribute__ ((noinline, noclone)) void
+f (void)
+{
+ g ();
+}
+
+int
+main (void)
+{
+ f (); /* first */
+ f (); /* second */
+ v = 3;
+ return 0;
+}
--- src/gdb/testsuite/gdb.arch/amd64-tailcall-ret.exp
+++ src/gdb/testsuite/gdb.arch/amd64-tailcall-ret.exp 2013-01-13 07:24:25.267748000 +0000
@@ -0,0 +1,44 @@
+# Copyright (C) 2012 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+set testfile "amd64-tailcall-ret"
+set opts {}
+set srcfile "amd64-tailcall-ret.S"
+
+if [info exists COMPILE] {
+ # make check RUNTESTFLAGS="gdb.arch/amd64-tailcall-ret.exp COMPILE=1"
+ #standard_testfile
+ lappend opts debug optimize=-O2
+} elseif { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
+ verbose "Skipping ${testfile}."
+ return
+}
+
+if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} $opts] } {
+ return -1
+}
+
+if ![runto_main] {
+ return -1
+}
+
+gdb_breakpoint "g"
+gdb_continue_to_breakpoint "g" ".* v = 2;"
+
+gdb_test "return" { f \(\); /\* second \*/} "return" \
+ {Make g return now\? \(y or n\) } "y"
+
+gdb_continue_to_breakpoint "g" ".* v = 2;"
+
+gdb_test "finish" " v = 3;"
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